428106578245 has 8 divisors (see below), whose sum is σ = 513749592216. Its totient is φ = 342470797056.

The previous prime is 428106578231. The next prime is 428106578267. The reversal of 428106578245 is 542875601824.

It can be written as a sum of positive squares in 4 ways, for example, as 58149464164 + 369957114081 = 241142^2 + 608241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428106578245 - 2³⁷ = 290667624773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428106578192 and 428106578201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677112 + ... + 1915441.

It is an arithmetic number, because the mean of its divisors is an integer number (64218699027).

Almost surely, 2^428106578245 is an apocalyptic number.

It is an amenable number.

428106578245 is a deficient number, since it is larger than the sum of its proper divisors (85643013971).

428106578245 is a wasteful number, since it uses less digits than its factorization.

428106578245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616391.

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 428106578245 in words is "four hundred twenty-eight billion, one hundred six million, five hundred seventy-eight thousand, two hundred forty-five".